25792665 has 16 divisors (see below), whose sum is σ = 41767488. Its totient is φ = 13589696.

The previous prime is 25792661. The next prime is 25792699. The reversal of 25792665 is 56629752.

It is a cyclic number.

It is not a de Polignac number, because 25792665 - 2² = 25792661 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25792661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9114 + ... + 11603.

It is an arithmetic number, because the mean of its divisors is an integer number (2610468).

Almost surely, 2^25792665 is an apocalyptic number.

It is an amenable number.

25792665 is a deficient number, since it is larger than the sum of its proper divisors (15974823).

25792665 is a wasteful number, since it uses less digits than its factorization.

25792665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20808.

The product of its digits is 226800, while the sum is 42.

The square root of 25792665 is about 5078.6479499961. The cubic root of 25792665 is about 295.4600310690.

The spelling of 25792665 in words is "twenty-five million, seven hundred ninety-two thousand, six hundred sixty-five".